CDB5571-2 datasheet, PDF - EEWORLD Datasheet

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CDB5571-2: Descriptiondev board for cs5571 W/SE input; CategoryDevelopment board/suite/development tools; File Size678KB，26 Pages; ManufacturerCirrus Logic; Websitehttp://www.cirrus.com; Environmental Compliance

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CDB5571-2 Overview

dev board for cs5571 W/SE input

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CDB5571-2

100 kSps, 16-bit

∆Σ

ADC

Evaluation Board

Features

Analog Input Channel to the CS5571 ADC

Pre-configured to require a minimum number of external

connections to your data acquisition system.

All functionality accessible through the connector interface

and board-level options.

On-board 4.096 V Reference

Pre-configured for Master mode SPI™ communication to a

data capture system.

General Description

The CDB5571-2 is a versatile tool designed for evaluating the func-

tionality and performance of the CS5571 ADC (Analog-to-Digital

Converter). The SPI serial port on the CDB5571-2 evaluation

board is configured in Master mode and will start transmitting data

after power-up upon reset. This evaluation board is designed to

connect to your data capture system or will interface to the

CapturePlus II data acquisition system available from Cirrus Logic.

The CS5571 delta-sigma ADC produces fully settled conversions

to full specified accuracy at 100 kSps.

All evaluation board functionality for evaluating the CS5571 ADC is

accessed through the connector interface and board-level options.

Schematics in PADS™ PowerLogic™ format are available for

download at

www.cirrus.com/IndustrialSoftware.

ORDERING INFORMATION

CDB5571-2

Evaluation Board

Image Coming Soon

www.cirrus.com

Cirrus Logic, Inc. 2007

JUN ‘07

DS791DB1

CDB5571-2

Contacting Cirrus Logic Support

For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the one nearest to you

go to

www.cirrus.com

IMPORTANT NOTICE

Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject

to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant

information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale

supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus

for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third

parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights,

copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives

consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This con-

sent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROP-

ERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR

USE IN AIRCRAFT SYSTEMS, MILITARY APPLICATIONS, PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY

DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDER-

STOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUD-

ING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT

IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL

APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND

OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION

WITH THESE USES.

Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks

or service marks of their respective owners.

Windows, Windows XP, Windows 2000, and Windows NT are trademarks of Microsoft Corporation.

SPI is a trademark of Motorola, Inc.

PADS and PowerLogic are trademarks of Mentor Graphics.

DS791DB1

CDB5571-2

TABLE OF CONTENTS

1. INTRODUCTION ....................................................................................................................... 4

1.1 Overview ............................................................................................................................ 5

2. QUICK START........................................................................................................................... 6

3. HARDWARE DESCRIPTION ................................................................................................... 7

3.1 Absolute Maximum Ratings ............................................................................................... 7

3.2 Power Supply .................................................................................................................... 7

3.3 Analog Section .................................................................................................................. 7

3.3.1 Analog Input Buffers ............................................................................................. 7

3.3.2 ADC Reset ............................................................................................................ 8

3.3.3 Voltage Reference ................................................................................................ 8

3.3.4 ADC Reference Frequency ................................................................................... 8

3.4 Digital Section .................................................................................................................... 9

3.4.1 Hardware Configuration ........................................................................................ 9

3.4.2 SPI™ Serial Port Communications ....................................................................... 9

Appendix A. Maximizing the Performance of the CS5571...................................................... 10

A.1 PCB Layout Considerations ............................................................................................ 10

A.2 Hardware Considerations................................................................................................ 10

Appendix B. Bill Of Materials .................................................................................................... 11

Appendix C. Schematics ........................................................................................................... 12

Appendix D. Layer Plots............................................................................................................ 17

REVISION HISTORY .................................................................................................................... 26

LIST OF FIGURES

Figure 1. CDB5571-2 Block Diagram.............................................................................................. 5

Figure 2. CDB5571-2 Board Layout................................................................................................ 6

Figure 3. Schematic - Block Diagram............................................................................................ 12

Figure 4. Schematic - Power Supplies .......................................................................................... 13

Figure 5. Schematic - Input Buffers and Multiplexer ..................................................................... 14

Figure 6. Schematic - CS5571 ...................................................................................................... 15

Figure 7. Schematic - Configuration & Misc.................................................................................. 16

Figure 8. Top Silkscreen ............................................................................................................... 17

Figure 9. Top Solder Mask............................................................................................................ 18

Figure 10. Top Routing ................................................................................................................. 19

Figure 11. Ground Plane............................................................................................................... 20

Figure 12. Power Plane................................................................................................................. 21

Figure 13. Bottom Solder Mask..................................................................................................... 22

Figure 14. Bottom Silkscreen ........................................................................................................ 23

Figure 15. Top Solder Paste Mask................................................................................................ 24

Figure 16. Bottom Routing ............................................................................................................ 25

LIST OF TABLES

Table 1. Power Supply Connections ............................................................................................... 7

Table 2. Analog Input Connection................................................................................................... 7

Table 3. Hardware Configuration Signals ....................................................................................... 9

Table 4. Serial Interface Connections ............................................................................................. 9

DS791DB1

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